† Cerithiopsis merignacensis Cossmann & Peyrot, 1922
Cerithiopsis merignacensis Cossmann & Peyrot, 1922: 294, pl. 6, fig. 77–80.
Metaxia merignacensis (Cossmann & Peyrot, 1922) — Lozouet 1999: 21.
Type locality. France, Mérignac (le Pontic).
Type stratum. Miocene, Aquitanian.
Type material. Type material not located so far.
Distribution. France (Cossmann & Peyrot 1922; Lozouet et al. 2001).
Geological age. Miocene (Cossmann & Peyrot 1922; Lozouet et al. 2001).
(†) Murex metaxa Delle Chiaje, 1828
Murex metaxa Delle Chiaje, 1828: 222 .
Cerithium metaxa (Delle Chiaje, 1828) — Wood 1848: 71, pl. 8, fig. 6, 6a.
Cerithiopsis metaxa (Delle Chiaje, 1828) — Jeffreys 1885: 119, pl. 118, fig. 18, pl. 120, fig. 9–10.
Cerithiopsis metaxae (Delle Chiaje, 1828) — Friedberg 1914: 306, pl. 18, fig. 20–21.
Cerithiopsis (Metaxia) rugulosa metaxae (Delle Chiaje, 1828) — Strausz 1966: 167, pl. 8, fig. 21.
Cerithiopsis (Metaxia) metaxae (Delle Chiaje, 1828) — Baluk 1975: 160, pl. 19, fig. 15–16.
Metaxia metaxae (Delle Chiaje, 1828) — Bouchet 1985: 15, fig. 14, 18.
Metaxia metaxa (Delle Chiaje, 1828) — Dowgiallo 2004: 192
Type locality. Italy, Napoli.
Neotype type locality. France, Corsica, Calvi.
Type material. MNHN-IM-2000-702, neotype. Holotype lost (Bouchet 1985).
Distribution. Bahamas (Dowgiallo 2004), Belgium (Marquet 1996), Cape Verde (Fernandes & Rolán 1988; Fernandes & Rolán 1991; van der Linden 1998; Rolán 2005), Croatia (Romani et al. 2018), Cuba (Rosenberg et al. 2009), France (Locard 1886; Bouchet 1985), Greece (Cosenza & Fasulo 1997), Gulf of Mexico (Rosenberg et al. 2009), Hungary (Strausz, 1954; Strausz 1966; Landau et al. 2006), Israel (Mediterranean) (Albano et al. 2020), Italy (Delle Chiaje 1828; Monterosato 1875; Harmer 1918; Richter & Thorson 1975; Landau et al. 2006; Vazzana 2010; Albano & Sabelli 2012), Lebanon (Crocetta et al. 2020), Malta (Cachia et al. 1996), Morocco (van der Linden 1998; Ardovini & Cossignani 2004), Poland (Friedberg 1914; Baluk 1975; Landau et al. 2006), Portugal (Landau et al. 2006), Portugal, Madeira (van der Linden 1998; Segers et al. 2009), Romania (Landau et al. 2006), Senegal (Ardovini & Cossignani 2004), Spain (Harmer 1918; Templado 1986; Giribet & Peñas 1997; van der Linden 1998; Taruella Ruestes 2002; Landau et al. 2006; Peñas et al. 2006; Tarruella Ruestes & Soriano 2006; Oliver Baldoví 2007; Gofas et al. 2011), Spain, Canary Islands (Fernandes & Rolán 1991; van der Linden 1998), Tunesia (Bouchet 1985), Turkey (Demir 2003), United Kingdom (Jeffreys 1885; Harmer 1918; Bouchet 1985), United States, North Carolina (Rosenberg et al. 2009).
Geological age. Holocene (Landau et al. 2006), Pleistocene (Harmer 1918; Landau et al. 2006; Landau et al. 2018), Pliocene (Landau et al. 2006; Landau et al. 2018), Miocene (Friedberg 1914; Baluk 1975; Landau et al. 2006; Landau et al. 2018).
Remarks. Rosenberg et al. (2009) recorded this species also for Cuba, Gulf of Mexico and North Carolina, and Dowgiallo (2004) recorded this species for the Bahamas; however, these identifications should be verified because they could be misidentifications of Cerithiopsis metaxae var. taeniolata Dall, 1889 . Murex metaxa was considered a nomen dubium by Marshall (1977) because of the lack of type material, but Bouchet (1985) selected a neotype from Calvi, Corsica. Monterosato realized himself shortly afterwards having introduced Cerithium benoitianum Monterosato, 1869 that it was a junior synonym of Murex metaxa Delle Chiaje, 1828 . Cerithium subcylindricum Brusina, 1865, Metaxia rugulosa var. exilissima Monterosato, 1884 and Cerithiopsis excavata Locard, 1897 are considered junior synonyms of Murex metaxa Delle Chiaje, 1828 (Bouchet 1985) .
(†) Cerithiopsis metaxae var. taeniolata Dall, 1889
Cerithiopsis metaxae var. taeniolata Dall, 1889a: 256 .
Metaxia taeniolata (Dall, 1889) — Rolán & Fernández-Garcés 1992: 173, fig. 3, 8.
Type locality. United States, off North Carolina coast.
Type material. USNM 92743, 92745, 92746, syntypes .
Distribution. Brazil (Fernandes & Pimenta 2011; Fernandes & Segadilha 2019; Fernandes & Pimenta 2020), Colombia (Fernandes & Pimenta 2011), Cuba (Rolán & Fernández-Garcés 1992; Rolán & Fernández-Garcés 2007; Rosenberg et al. 2009; Díaz & Miloslavich 2010; Fernandes & Pimenta 2011), Gulf of Mexico (Rosenberg et al. 2009), United States, Florida (Dall 1892; Camp et al. 1998; Fernandes & Pimenta 2011), United States, North Carolina (Dall 1889a; Fernandes & Pimenta 2011; Rosenberg et al. 2009; Fernandes & Pimenta 2020), United States, Texas (Fernandes & Pimenta 2011; Fernandes & Pimenta 2020).
Geological age. Pliocene (Dall 1892).